Beryllium has higher ionisation enthalpy than boron. This can be explained as,
Chemistry · Class 11 · CBSE — Classification of Elements and Periodicity in Properties
Beryllium has higher ionisation enthalpy than boron. This can be explained as,
- beryllium has higher size than boron hence its ionisation enthalpy is higher
- penetration of 2p-electrons to the nucleus is more than the 2s-electrons
- it is easier to remove electron from 2p-orbital as compared to 2s-orbital due to more penetration of s-electrons
- ionisation energy increases in a period.
Answer
(C) it is easier to remove electron from 2 p -orbital as compared to 2 s -orbital due to more penetration of s -electrons
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